You'll probably only call this function if progress polling times out and its error message tells you to call pollProgress to resume.

pollProgress(progress_url, wait = 0.5, error_handler = NULL)



A Crunch progress URL


Number of seconds to wait between polling. This time is increased 20 percent on each poll.


An optional function that takes the status object when the progress is less than 0 (meaning the request failed)


The percent completed of the progress. Assuming the options(crunch.timeout) (default: 15 minutes) hasn't been reached, this will be 100. If the timeout is reached, it will be the last reported progress value.